def MakeVersionString(quiet, no_git_hash, custom_for_pub=None):
channel = utils.GetChannel()
if custom_for_pub and channel == 'be':
latest = utils.GetLatestDevTag()
if not latest:
# If grabbing the dev tag fails, then fall back on the VERSION file.
latest = utils.GetSemanticSDKVersion(no_git_hash=True)
if no_git_hash:
version_string = ("%s.%s" % (latest, custom_for_pub))
else:
git_hash = utils.GetShortGitHash()
version_string = ("%s.%s-%s" % (latest, custom_for_pub, git_hash))
# TODO(athom): remove the custom 2.7.0 logic post release.
# For 2.7.0, we want flutter to claim Dart is 2.7.0 even before it is
# decided what exactly 2.7.0 will be. Dart & Flutter stable releases
# will be synced, so that what will be released as Dart 2.7.0 will also
# be what will be packaged with Flutter.
version = utils.ReadVersionFile()
custom_version_string = "%s.%s.%s" % (version.major, version.minor,
version.patch)
if custom_version_string == "2.7.0" and custom_for_pub == "flutter":
version_string = "2.7.0"
else:
version_string = utils.GetSemanticSDKVersion(no_git_hash=no_git_hash)
if not quiet:
debugLog("Returning version string: %s " % version_string)
return version_string
def Main():
parser = argparse.ArgumentParser()
parser.add_argument(
'--fail-loudly',
action='store_true',
default=False,
help=
"Return an error code if a prebuilt couldn't be fetched and extracted")
args = parser.parse_args()
fail_loudly = 1 if args.fail_loudly else 0
prebuilt_enabled = os.environ.get(FLUTTER_PREBUILTS_ENV_VAR, 'false')
if prebuilt_enabled == '0' or prebuilt_enabled.lower() == 'false':
return 0
os.makedirs(FLUTTER_PREBUILTS_DIR, exist_ok=True)
# Read //third_party/dart/tools/VERSION to extract information about the
# Dart SDK version.
version = utils.ReadVersionFile()
if version == None:
return fail_loudly
channel = version.channel
# A short Dart SDK version string used in the download url.
if channel == 'be':
dart_git_rev = utils.GetGitRevision()
semantic_version = 'hash/{}'.format(dart_git_rev)
semantic_version = utils.GetSemanticSDKVersion()
os_name = GuessOS()
if os_name == None:
return fail_loudly
architectures = ArchitecturesForOS(os_name)
if architectures == None:
return fail_loudly
# Download and extract variants in parallel
pool = multiprocessing.Pool()
tasks = [(channel, semantic_version, os_name, arch)
for arch in architectures]
async_results = [pool.apply_async(DownloadAndExtract, t) for t in tasks]
success = True
for async_result in async_results:
result = async_result.get()
success = success and (result == 0)
return 0 if success else fail_loudly
def Main():
parser = argparse.ArgumentParser()
parser.add_argument(
'--fail-loudly',
action='store_true',
default=False,
help=
"Return an error code if a prebuilt couldn't be fetched and extracted")
parser.add_argument('--verbose',
action='store_true',
default='LUCI_CONTEXT' in os.environ,
help='Emit verbose output')
args = parser.parse_args()
fail_loudly = 1 if args.fail_loudly else 0
verbose = args.verbose
prebuilt_enabled = os.environ.get(FLUTTER_PREBUILTS_ENV_VAR, 'true')
if prebuilt_enabled == '0' or prebuilt_enabled.lower() == 'false':
if verbose:
print('Skipping prebuild Dart SDK download.')
return 0
os.makedirs(FLUTTER_PREBUILTS_DIR, exist_ok=True)
# Read //third_party/dart/tools/VERSION to extract information about the
# Dart SDK version.
version = utils.ReadVersionFile()
if version == None:
eprint('Failed to read the Dart VERSION file.')
return fail_loudly
channel = version.channel
if verbose:
print('Dart SDK channel = "%s".' % channel)
# A short Dart SDK version string used in the download url.
if channel == 'be':
dart_git_rev = utils.GetGitRevision()
semantic_version = 'hash/{}'.format(dart_git_rev)
else:
semantic_version = utils.GetSemanticSDKVersion()
if verbose:
print('Semantic Dart SDK version = "%s".' % semantic_version)
os_name = GuessOS()
if os_name == None:
return fail_loudly
architectures = ArchitecturesForOS(os_name)
if architectures == None:
return fail_loudly
# Work around a bug in Python.
#
# The multiprocessing package relies on the win32 WaitForMultipleObjects()
# call, which supports waiting on a maximum of MAXIMUM_WAIT_OBJECTS (defined
# by Windows to be 64) handles, processes in this case. To avoid hitting
# this, we limit ourselves to 60 handles (since there are a couple extra
# processes launched for the queue reader and thread wakeup reader).
#
# See: https://bugs.python.org/issue26903
max_processes = os.cpu_count()
if sys.platform.startswith(('cygwin', 'win')) and max_processes > 60:
max_processes = 60
# Download and extract variants in parallel
pool = multiprocessing.Pool(processes=max_processes)
tasks = [(channel, semantic_version, os_name, arch, verbose)
for arch in architectures]
async_results = [pool.apply_async(DownloadAndExtract, t) for t in tasks]
success = True
for async_result in async_results:
result = async_result.get()
success = success and (result == 0)
return 0 if success else fail_loudly